Architectural block from the Sebasteion.
This part-finished block shows that on the architectural blocks of the Sebasteion the mouldings and flat surfaces were dealt with before work began on the figurative details, such as the central boss here. This boss was clearly left rough for a specialist carver who had begun to carve a face into it when the block was needed and inserted into the building - the rough surface around this face shows the original size of this boss.
